| 1．Itokazu Castle |
| Itokazu Castle (糸数城, Itokazu jō, Okinawan: Ichukaji Gushiku) is a Ryukyuan gusuku in Nanjō, Okinawa. It was built with Ryūkyūan limestone in the mid-14th century. It is now in ruins.[1] The castle was built in the Gusuku Period of Ryukyuan history. It was the home of the Aji of Tamagusuku Magiri. After Nanzan was conquered in 1429 by Shō Hashi, it came under the control of the Ryukyu Kingdom. |
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| 2．Kakinohana Castle |
| Kakinohana Castle (垣花城, Kakinohana jō, Okinawan: Kachinuhana Gushiku) is a Ryukyuan gusuku in Nanjō, Okinawa. Kakinohana Castle is a kuruwa[1] style fortification on a hill overlooking the Pacific Ocean. The stone walls are built in the nozura[1] (stacked stone) style. No accurate details of the construction of this castle exist, but legend states it that it was built by the second son of Minton Aji, an Okinawan ruler around the 14th century.[2] |
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| 3．Tamagusuku Castle |
| Tamagusuku Castle (玉城城, Tamagusuku jō, Okinawan: Tamagushiku[1]) is a Ryukyuan gusuku in Nanjō, Okinawa. It is the oldest castle on Okinawa; Chūzan Seikan says it was built by Amamikyu, the creation goddess of the Ryukyuan religion. It was the home of the Aji of Tamagusuku Magiri. It is located about 700 meters north of Tamagusuku village. The castle is almost a complete ruin and is visited as a sacred grove |
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| 4．Chinen Castle |
| Chinen Castle (知念城, Chinen jō, Okinawan: Chinin Gushiku) is a Ryukyuan gusuku in Nanjō, Okinawa. It is the second oldest castle in the Ryukyu Islands. The ruins consist of the old castle to the east being made out of rock and the other newer castle to the west being made out of ashlar masonry.[1] Before the Sanzan Period, the "King of the Ryukyu Islands" and the chief priestess would make a pilgrimage to Chinen Castle. The castle was the home of the Aji of Chinen Magiri. The new castle was built[2] under Shō Shin who reigned from 1477 to 1526. In 1972 the ruins of Chinen Castle were designated as a National Historic Site.[3] |
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